Heat Resistant Purging Systems

RANGE: 3 -80" / 60 - 2044 mm

The PPM Purge Bag and Rapid Purge™ systems are both available in a heat-resistant version. They are designed to be used when high temperatures will be encountered during the process of pipe welding, such as pre-heated pipework, and pipes where very high temperatures are required for welding.

These versions of the inflatable pipe purging systems are heat resistant up to 350ºC (662ºF) for up to 24 hours, or up to 500ºC (932ºF) for short periods of time. The heat-resistant systems are available for all pipe diameters from 3 – 80″ / 63 – 2,035 mm. Mirroring the features of the standard range of inflatable purging systems, the heat-resistant range comes with a central luminous band for rapid centering of the system to the weld root.

The welder can position these systems prior to pre-heating and leave them in place throughout the pre-heating, welding, and post-heat treatment cycles, allowing the weld to be purged continuously for up to 24 hours if necessary.

Request a Quote

Mobile Nav

Product Advantages

Heat resistant up to 350ºC (662ºF) for up to 24 hours, or up to 500ºC (932ºF) for short periods
Available for all pipe diameters from 3 to 80″ / 63 to 2,044 mm
Designed to be flexible, for ease of insertion, use and withdrawal from pipes, bends, elbows etc.
Suitable for 24-hour cycles, including pre-heat, weldin,g and post-weld heat treatment
A central luminous strip allows fast and accurate alignment of the system to the center point of the weld area
Manufactured to nuclear quality standards with nuclear-approved materials, these systems guarantee bright, shiny, coke and oxide-free welds
Designed and manufactured specifically for the power industry, where high-strength chrome alloy steels are more frequently used
Ready to use, connects to a dedicated and regulated gas supply. Choose any flow rate (purge bags – up to 20l/min/Rapid Purge™ up to 80l/min) through the twin pre-set purge valve

Specifications

Part No.	Description	Nominal pipe size	Internal diameter range (I/D)	Weight
PB02/HR	2″ Purge Bag – Heat Resistant to 500 degrees	2″ / 50 mm	1.49 – 2.37″ / 38 – 60 mm	1 lbs / 0.40 kg
PB03/HR	3″ Purge Bag – Heat Resistant to 500 degrees	3″ / 75 mm	2.17 – 3.53″ / 55 – 90 mm	1 lbs / 0.50 kg
PB04/HR	4″ Purge Bag – Heat Resistant to 500 degrees	4″ / 100 mm	3.51 – 4.51″ / 89 – 115 mm	1 lbs / 0.60 kg
PB05/HR	5″ Purge Bag – Heat Resistant to 500 degrees	5″ / 125 mm	4.14 – 5.50″ / 105 – 140 mm	1 lbs / 0.70 kg
PB06/HR	6″ Purge Bag – Heat Resistant to 500 degrees	6″ / 150 mm	5.32 – 6.68″ / 135 – 170 mm	2 lbs / 0.90 kg
PB07/HR	7″ Purge Bag – Heat Resistant to 500 degrees	7″ / 175 mm	6.30 – 7.66″ / 160 – 195 mm	2 lbs / 1.20 kg

Larger sizes and custom solutions are available upon request, with 35 mm / 1.37″ expansion range

Part No.	Description	Nominal pipe size	Internal diameter range (I/D)	Weight
RP08/HR	8″ Rapid Purge – Heat Resistant up to 500 degrees	8″ / 200 mm	7.09 – 8.45″ / 180 – 215 mm	3 lbs / 1.40 kg
RP10/HR	10″ Rapid Purge – Heat Resistant up to 500 degrees	10″ / 250 mm	9.26 – 10.61″ / 235 – 270 mm	3 lbs / 1.70 kg
RP12/HR	12″ Rapid Purge – Heat Resistant up to 500 degrees	12″ / 300 mm	11.03 – 12.39″ / 280 – 315 mm	4 lbs / 2.10 kg
RP14/HR	14″ Rapid Purge – Heat Resistant up to 500 degrees	14″ / 350 mm	12.41 – 13.76″ / 315 – 350 mm	5 lbs / 2.50 kg
RP16/HR	16″ Rapid Purge – Heat Resistant up to 500 degrees	16″ / 400 mm	14.38 – 15.73″ / 365 – 400 mm	5 lbs / 2.70 kg
RP18/HR	18″ Rapid Purge – Heat Resistant up to 500 degrees	18″ / 450 mm	16.34 – 17.70″ / 415 – 450 mm	6 lbs / 3.00 kg
RP20/HR	20″ Rapid Purge – Heat Resistant up to 500 degrees	20″ / 500 mm	18.31 – 19.67″ / 465 – 500 mm	7 lbs / 3.40 kg
RP22/HR	22″ Rapid Purge – Heat Resistant up to 500 degrees	22″ / 550 mm	19.69 – 21.05″ / 500 – 535 mm	7 lbs / 3.60 kg
RP24/HR	24″ Rapid Purge – Heat Resistant up to 500 degrees	24″ / 600 mm	22.45 – 23.80″ / 570 – 605 mm	8 lbs / 3.80 kg
RP26/HR	26″ Rapid Purge – Heat Resistant up to 500 degrees	26″ / 650 mm	24.41 – 25.77″ / 620 – 655 mm	9 lbs / 4.50 kg
RP28/HR	28″ Rapid Purge – Heat Resistant up to 500 degrees	28″ / 700 mm	26.38 – 27.74″ / 670 – 705 mm	12 lbs / 5.50 kg
RP30/HR	30″ Rapid Purge – Heat Resistant up to 500 degrees	30″ / 750 mm	28.35 – 29.71″ / 720 – 755 mm	13 lbs / 6.00 kg
RP32/HR	32″ Rapid Purge – Heat Resistant up to 500 degrees	32″ / 800 mm	30.32 – 31.68″ / 770 – 805 mm	18 lbs / 8.00 kg
RP34/HR	34″ Rapid Purge – Heat Resistant up to 500 degrees	34″ 850 mm	32.48 – 33.86″ / 825 – 60 mm	19 lbs / 8.50 kg
RP36/HR	36″ Rapid Purge – Heat Resistant up to 500 degrees	36″ / 900 mm	34.45 – 35.81″ / 875 – 910 mm	20 lbs / 9.10 kg
RP38/HR	38″ Rapid Purge – Heat Resistant up to 500 degrees	38″ / 950 mm	36.61 – 37.99″ / 930 – 965 mm	21 lbs / 9.50 kg
RP40/HR	40″ Rapid Purge – Heat Resistant up to 500 degrees	40″ / 1,000 mm	38.98 – 39.95″ / 990 – 1015 mm	22 lbs / 9.90 kg
RP42/HR	42″ Rapid Purge – Heat Resistant up to 500 degrees	42″ / 1,050 mm	40.56 – 41.91″ / 1,030 – 1,065 mm	29 lbs / 13.20 kg
RP44/HR	44″ Rapid Purge – Heat Resistant up to 500 degrees	44″ / 1,100 mm	42.52 – 43.90″ / 1,080 – 1,115 mm	30 lbs / 13.70 kg
RP46/HR	46″ Rapid Purge – Heat Resistant up to 500 degrees	46″ / 1,150 mm	44.29 – 45.67″ / 1,125 – 1,160 mm	32 lbs / 14.50 kg
RP48/HR	48″ Rapid Purge – Heat Resistant up to 500 degrees	48″ / 1,200 mm	46.46 – 47.82″ / 1,180 – 1,215 mm	33 lbs / 15.00 kg
RP50/HR	50″ Rapid Purge – Heat Resistant up to 500 degrees	50″ / 1,250 mm	48.42 – 49.80″ / 1,230 – 1,265 mm	35 lbs / 16.00 kg
RP52/HR	52″ Rapid Purge – Heat Resistant up to 500 degrees	52″ / 1,300 mm	50.59 – 51.97″ / 1,285 – 1,320 mm	37 lbs / 17.00 kg
RP54/HR	54″ Rapid Purge – Heat Resistant up to 500 degrees	54″ / 1,350 mm	52.36 – 53.74″ / 1,330 – 1,365 mm	39 lbs / 18.00 kg
RP60/HR	60″ Rapid Purge – Heat Resistant up to 500 degrees	60″ / 1,500 mm	58.46 – 59.84″ /1,485 – 1,520 mm	44 lbs / 20.00 kg
RP72/HR	72″ Rapid Purge – Heat Resistant up to 500 degrees	72″ / 1,800 mm	70.27 – 71.65″ / 1,785 – 1,820 mm	62 lbs / 28.00 kg
RP80/HR	80″ Rapid Purge – Heat Resistant up to 500 degrees	80″ / 2,000 mm	78.35 – 79.72″ / 1,990 – 2,025 mm	66 lbs / 30.00 kg